You can find the chip tuning file for your Mercedes-Benz GL X164 - 2006 - 2012 500 - 388hp vehicle on our site. These files are created especially for you and handed to you. All our Tuning files are extensively tested on Dynometer. The development of the tuning file for your Mercedes-Benz GL X164 - 2006 - 2012 500 - 388hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 388 HP to 405 HP, 530 Torque to 570 Torque.